Dozens of people were dead in Paris last night as this newspaper went to press.
The fate of many more is unknown.
It is another black day in the history of the western world, which changed irrevocably on September 11 2001.
There will be an outpouring of sympathy for our friends and allies in France, which has declared a state of emergency.
We all know that Britain could well be the next target.
There have now been many large scale attacks on civilians since the Twin Towers were felled by Islamic psychopaths.
In 2002, more than 200 people were slaughtered in Bali.
In 2004, more than 200 people were slaughtered in Madrid.
In 2005, more than 50 people were slaughtered in London.
This year cartoonists were slaughtered in Paris and almost 40 people were slaughtered in Tunisia.
And now we have more deaths in Paris.
There will be more such attacks for sure, perhaps many and perhaps bigger than any of the above.
While it is clearly the case that most of the Muslim world is moderate and peaceful, we must move beyond the empty repetition of the phrase that “Islam is a religion of peace”.
It may well be, but a large and dangerous core of its adherents are wreaking havoc. Muslims must confront this and British Muslims must reject the UK jihadists and fully support the killing of them by allied forces.
We must be calm in the face of their murderous threat, but resolute too.
It was excellent news yesterday that the Jihadi John was killed. All such murdering brutes must be similarly hunted down.
Meanwhile, the civil liberty fools who question the work of our intelligence services must be ignored.
Those organisations must be lavishly funded and fully supported by politicians of all parties.